Information systems and software architect

National Health Insurance Fund of the Republic of Serbia - Sept 2024 ~ Present

Belgrade, Serbia - fulltime

As a System and Software Architect at RFZO Serbia, I contributed to the design and development of web applications and internal tools, leveraging JavaScript, PHP, Bootstrap, HTML, and CSS. I also implemented VBA scripts to automate workflows and improve operational efficiency. My work focused on delivering reliable, user-friendly solutions that supported core business processes.

Improved process efficiency by automating tasks with VBA, reducing manual work time by 30%. Developed and optimized 5+ web-based tools used daily by internal teams.

Frontend engineer

Minimarket Online LTD - Jan 2024 ~ Aug 2024

Belgrade, Serbia - fulltime

As a Frontend Engineer at Minimarket Online LTD, I was responsible for developing and optimizing the e-commerce platform’s user interface. I focused on building responsive, intuitive designs that delivered a smooth shopping experience while also improving performance, scalability, and code quality. My role combined feature development, UI enhancements, and collaboration with cross-functional teams to ensure business and customer needs were consistently met.

I improved website performance by reducing load times and optimizing code, which increased user engagement. I delivered responsive cross-browser interfaces, integrated third-party APIs and payment gateways, and ensured maintainable, standards-compliant code through regular reviews.

Business analitics associate for population data

NLB Komercijalna banka - Jun 2022 ~ Aug 2024

Belgrade, Serbia - fulltime

As a Business Analytics Associate for Population Data, I analyzed large-scale datasets to support decision-making and strategic planning. I generated actionable insights, conducted market research, and collaborated with cross-functional teams to ensure data accuracy and consistency across multiple bank branches in Belgrade.

I improved data integrity and reporting accuracy, enabling senior management to make more informed decisions. By delivering detailed analyses and actionable insights, I enhanced operational efficiency and supported the successful execution of strategic initiatives.

Product Data Integration Manager

Digitec Galaxus - Nov 2021 - Jun 2022

Belgrade, Serbia - fulltime

As a Product Data Integration Manager at Digitec Galaxus, I led the integration of numerous external partners into the webshop, significantly expanding product offerings and enhancing the customer experience. I collaborated with cross-functional teams across Switzerland, Serbia, and Germany, while working extensively with XML, CSV, XLS, and JSON formats using advanced Excel and SQL.

I successfully onboarded dozens of partners, which increased the product assortment and streamlined data integration processes. By implementing automated validation and standardized exchange procedures, I improved data quality, reduced errors, and enhanced cross-team efficiency.

SCO Help Desk Level 2 Specialist

NCR Corporation - Dec 2020 ~ Nov 2021

Belgrade, Serbia - fulltime

As an SCO Help Desk Specialist at NCR Corporation, I provided Level 2 technical support for one of Europe’s largest retailers, ensuring the smooth operation of self-checkout (SCO) systems across Germany, Slovakia, and Poland. My work involved advanced software troubleshooting, hardware maintenance, and coordination with store managers to resolve complex issues.

I reduced SCO system downtime through proactive troubleshooting and timely maintenance, ensuring smooth operations even during peak shopping periods. My support improved customer satisfaction, while developing best practices with the SCO team increased overall efficiency and reliability.

Web Developer

Minimarket pro LLP - Mar 2019 - Nov 2020

Belgrade, Serbia - fulltime

As a Web Developer at Minimarket PRO LLP, I contributed to the full lifecycle of the company’s website, from initial design to continuous optimization. I focused on creating an intuitive, responsive user interface while ensuring strong performance, SEO visibility, and accurate content management.

I successfully launched a revamped website that increased user engagement by 40% and boosted lead generation by 25%. By implementing responsive design and SEO best practices, I raised mobile satisfaction and organic traffic while streamlining content management, reducing maintenance time by 20%.

Web Developer

Милбор ОООИСК - Oct 2017 ~ Dec 2018

Belgrade, Serbia - fulltime

As a Web Developer at Milbor, I designed, developed, and maintained the company’s website, ensuring a strong online presence from launch through continuous updates. I collaborated with cross-functional teams to align business goals with technical execution, delivering a responsive, secure, and user-friendly platform.

I successfully launched a redesigned website that boosted traffic and user satisfaction, while leading a CMS migration that streamlined content management by 30%. By implementing responsive design and SEO best practices, I increased mobile engagement by 25% and reduced customer response times through integrated online chat support.

Darko Dujin

Software Engineer

May 2025

I worked with Nikola on several projects. The most important project was the framework we created for internal application development. Nikola actively participated in all phases of the project, he learned quickly and adapted to all requirements. He has special interests in technologies: React, Javascript, CSS, NodeJS and SQL.

Contact: Linkedin